Gaya APA
Assauri, S.
(2012).
Strategi marketing sustraning lifetime custamer value
.
Jakarta:
PT RajaGrafindo Persada.
Gaya MLA
Assauri, Sofyan.
"Strategi marketing sustraning lifetime custamer value".
Jakarta:
PT RajaGrafindo Persada,
2012.
Text.